Audi S4

Reliability, estimated running costs, and MOT data across 14 model years from 2,276 MOT tests in 2024.

Avg Pass Rate

87%

Total Tests

2,276

Highest Pass Rate

2013 (94%)

Years Covered

About the Audi S4

The Audi S4 was MOT tested 2,276 times in 2024 (DVSA data, retests included) across 14 model years (1999 to 2017), with an average pass rate of 87%. That's slightly above the average of 82% across all models in our data. Our records list petrol versions.

Best and Worst Years

Of the years with at least 100 tests, the 2013 model has the highest pass rate at 94% from 189 tests. The 2006 model has the lowest at 78%. With a 16 point gap, the year you choose makes a real difference. Newer cars usually pass more often simply because they are younger.

Reliability Trend

Newer Audi S4s pass their MOT more often than older ones, by 8 percentage points on average, which is mostly down to age and wear.

Mileage Across Years

The oldest model in our data (1999) averages 161,691 miles, while the newest (2017) averages 57,456 miles. Older models have covered serious mileage, so suspension and drivetrain wear are worth checking.

Estimated Running Costs

Fuel (Petrol, 2995cc)

£1,958

Road Tax

£200

MOT Test

£55

Predicted Repairs

£200

Total per year£2,413

Per month£201/mo

Based on 7,400 miles/year, average pump prices of 174.57p petrol and 199.33p diesel (GOV.UK weekly road fuel prices, week of 19 October 2026), and MOT pass rate data. Insurance not included.

Full 2017 details

How reliable is the Audi S4?

vs average of all models+5% (82% avg)

vs Audi brand average-3% (90% avg)

Best to worst year spread16 percentage points

Reliability trendImproving over years

Audi S4 by Year

Click any year to see detailed running costs, reliability data, and comparisons with similar cars.

Year	Pass Rate	Tests	Avg Mileage
2017	94%	69	57,456 mi
2015	92%	39	65,685 mi
2014	86%	170	83,424 mi
2013	94%	189	90,972 mi
2012	92%	78	82,804 mi
2011	87%	277	94,642 mi
2010	90%	277	101,140 mi
2009	91%	216	92,422 mi
2007	82%	126	83,877 mi
2006	78%	263	110,513 mi
2005	80%	169	99,307 mi
2004	81%	202	99,762 mi
2000	85%	59	152,811 mi
1999	85%	142	161,691 mi

Questions about the Audi S4

Is the Audi S4 reliable?

Across its 14 model years in our data (1999 to 2017), the Audi S4 averages an 87% MOT pass rate, from 2,276 tests (DVSA MOT data for tests in 2024, retests included). That's 5 points above the average of 82% across all models in the same data. The 2013 model has the highest pass rate of the years with at least 100 tests, at 94%.

Which year Audi S4 has the best MOT pass rate?

Of the years with at least 100 tests, the 2013 Audi S4 has the highest MOT pass rate at 94%, while the 2006 model has the lowest at 78%, a 16 point gap. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.